Steam-trap.



G. B. WILLIAMS. STEAM TRAP APPLICATION FILED "5.24. I915- L2$4,821@

Patented May 1, 1917.

2 SHEETS-SHEET I.

2a 3 ea 8 5; L. M 5 L? 3 341 6 7 G. B. WILLIAMS.

3mm TRAP. APPLICATION FILED FEB- 24. I915 U MQRS gnome o Q772 Patented May 1, 1917.

2 SHEETSSHEET 2 flea/ya B. 14 27 STEAM-TRAP.

Specification of Letters Patent.

Patented ltltay it, 1191?.

Application filed February 24, 1915. Serial No. 10,306.

To all when: it may con ern:

Be it known that I, GEORGE l3. \Vnmuws, a citizen of the United States of America, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Steam- Traps, of which the following is a specificationl v This invention relates to improvements in steam traps whereby the water of condensation may be returned to steam boilers and steam mains, heating coils. etc.. relieved of all water of condensation.

In carrying out the present invention. it is my purpose to provide a steam trap wherein the water of condensation will be positively discharged therefrom under steam pressure when the water level rises to a predetermined point and into which the water of condensation may flow without encountering any back pressure or similar resistance.

It is also my purpose to provide a steam trap wherein the steam equalizing and water discharge valves and the pressure release valve will be operated positively and' etlectively and float controlled so that the steam equalizing valve and the water discharge valve will be opened simultanetmsl'v when the float rises to a 1n'edetermined' point. and such valves closed and the release valve opened when the lloat dropsto a'predetcrmined point incident to the discharge of the water from the trap. the valve being positively actuated imlcpendently of the. float after the latter has risen or'fallen.

Vith the aboveand other objects in view. the invention consists in the construction, continuation and arrangement of parts here inafter set forth in'and falling within the scope of the claims without departing from the spirit of the invention.

In the accompanying drawings;

Figure 1 is a view in front elevation of a steam trap constructed in accordance with the present invention, parts being bt'Olitll avay.

Fig. '2 is a horizontal sectional through the trap.

Fig. 3 is a fragmentary end view partlv in section.

Fig. 4 is a collective. view showing a porv i e w tion of the float operated shaft. the controlling plate for the valves and the. operating arm for the valves in perspective.

Fig. 5 is an enlarged side elevation showing the connections between the steam equal izing valve and the water discharge valve.

Referring now to the drawings in detail.

1 designates a casing eonstructtal of anv suitable material and having one side formed with a lateral extension '2 in open communication with the interior of the casing 1. In the present instance, the outer end of the extension 2 is closed by means of a cover plate 3 bolted to the edge of the extension by means of securing bolts 4' and capable of removal therefrom so that access may be had to the interior of the extension and the interior 0f the casing. Formed in the bottom .all of the casing 1 is an opening 5 and connected with the opening 5 by n mus of an appropriate coupling an inlet pipe 6 and an outlet or discharge pipe 7. In each pipe (3, T is located a check valve R and the check valve 8 in the pipe (3 permits water of condensation to flow into the casing l and prevents back flow. while the check valve in the discharge pipe T permits the water to be discharged through the pipe T from the casing l and prevents the water from rei ntering the casing 1 through the pipe 7. in the present instance. the connection between the inlet and discharge pipes t1 and 7 respectively and the casing is effected bv means of a T-coupling and t-he inlet and discharge pipes are disposed in a horizontal. plane eoaxial with one another. lt is conceivable. n-owever. that the inlet and outlet pipes may be otherwise connected with the casing and arranged in any desired positions relatively. Formed in the casing 1 adjacent to the upper end thereof is a steam inlet opening 9 'and connected with the stcau': inlet opening 9 is one end of a steam pipe 10 having the other end thereof terminating immediately below the lateral extension :2 on the casing l and connected with branch pipes ll. 12. In the present instance. a T-coupling forms the connection between the. lower end of the steam pipe 10 and the branch pipes 11 and 12 and the latter are disposed in the same horizontal plane coaxial with each other.

However, the branch pipes 11 and 12 may be connected with the steam pipe 10 in any other suitable manner and otherwise arranged if desired.

In the pr sent instance, the pipes 11 12 are disposed in a plane above the discharge pipe 7 parallel with the latter and located in the pipe 11 is a steam valve 13 of any suitable construction preferably of the sliding gate type, while located in the branch pipe 12 is a pressure. release valve l-t of any approved construction, preferably of the sliding gate type. Located in the discharge pipe 7 and controlling the flow of water therethrough is a valve 15 preferably, although not necessarily, of the sliding gate type. The valves 13 and 15 are disposed one above the other and connected to the stem of the valve 13 is a yoke 16 having the lower end portion thereof connected through the medium of a rod 17 with the stem of the valve 15.

Arranged within the lateral extension 2 of the casing 1 is a horizontal shaft 18 projecting outwardly through one side of the extension 2 and working in a stufling box 19. Fast upon the inner end of the shaft 18 is one end of an arm 19 and connected to the remaining end of the arm 15) is a limit 20 located within the casing 1. Loosely mounted upon the outer end of the shaft 18 and projecting upwardly therefrom is an arm 21 and fixed to the upper end of the arm 21 is a weight 22 normally acting to swing'the arm in one direction or the other and secured to the adjacent side of the lateral extension and projecting outwardly therefrom in the paths of movement of the arm 21 are stop pins 231. 23 adapted to limit the swinging movement of the arm 21 under the action of the weight 22. sector-like plate 24 is loosely mounted at its center upon the outer end portion of the' shaft 1h. innuediatcly adjacent to the arm 21 and projects upwardly from the shaft and secured to the outer face of the plate 24 and projecting outwardly therefrom are pins 25. 25 disposed at the opposite sides of the arm 21 in the paths of movement of the latter. Projecting outwardly from the front side of the arm 21 adjacent to the pivoted end thereof are pins 21 disposed at the opposite sides of a pin 27 secured to the outer end of the shaft 18 and projecting upwardly therefrom between the pins as. 'hcn the lloat 20 moves upwardly in the casing 1 under the action of the water the arm lf rotates the shaft 18 and in the initial rotary movement ol' the shaft 18 the pin 27 thereon engages the topmost pin 26 and swings the arm 21 to a substantially vertical position. When the shaft 18 has revolved sullicicntly to l we, the arm 21 and slightly beyond the vertical, the weight 22 carries the arm 21 around independently of the action of the shaft 18 and float 20 and in this movement of the arm 21 under the action of the weight, such arm engages the pin 25 in the path of movement thereof on the plate 21. thereby revolving the plate '24 about the shaft. the stop pin 23 in adshaft 18 in the reverse direction and in the initial movement of the shaft 18 the pin 27 thereon engages the other pin 26 on the arm 21 and swings the latter past the vertical position in the oppositev direction. Innnediately that the arm 21 passes the vertical the weight 22 carries such arm downwardly into engagement with the stop pin 23 and in this downward movement of the arm 21 the other pin 25 on the plate 21 is engaged bythe arm aml the plate 2t swung in the reverse direction.

Secured to the outer face of the plate 2st at the opposite sides of the center thereof are eyes 28 respectively and passed through the eyes 28 are the upper extremities of rods 20, 2!) respectively connected with the stems of the valves 13 and 1%. Threaded onto the upper end portion of each rod 29 below the eye 28 is an adjusting nut 30 and threaded onto each rod above the eye is an adjusting nut 31.

In practice. the branch pipe 11 is connected up with the steam space of the boiler or other steam container, the pipe 7 connected with the water space of the boiler and the pipe (3 connected with the boiler or other apparatus to receive the water of comlensation therefrom. As the water of condensation enters'the casing 1 the float 2t) rises and rotates the shaft 18 to swing the arm 21 as previously described and in the movement of the arm 21 under the action of the weight 22. succeeding the rising of the tloat 21), the plate 24 swings about the shaft 1% with the effect to close the valve ll and open the valves 13 and 15. When the valve 13 is open steam flows into the upper end portion of the casing 1 andso forces the water out of the latter through the pipe 7 past the valve 15. In the emptying of the casing 1 the float 2t) descends and so reverses the movement of the shaft 15% and the arm 21 swings the plate 21 in the reverse direction, thereby closing the. valves 1 and 15 and opening the valve llv to place the steamsp ace of the casing l in communication with the atmos 'ihere whereby the water of condensation may llow freely into the casing with out encoimtering back pres-sure or accumuings. the construction, mode of operation -and manner of employing my invention will be readily apparent. It will be seen that I have provided a steam trap wherein the controlling valves are actuated posi:

tively independently of thefloat after the latter has reached the limit of its movement to one position or the other and into which the water of condensation will flow freely and from which such water will be positively discharged.

Vhile I have herein shown and described the preferred form of my invention by way. of illustration. I wish it to be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be made'within the scope of the claims without departing from the spirit of the invention.

I claim:

1. A steam trap comprising a casing having a water inlet and a water outlet in the bottom thereof, and a steam inlet in the top, a valve controlling said outlet, a valve connecting said steam inlet to a source of steam pressure, a valve for placing the same steam inlet in communication with the atmosphere, the first two mentioned valves being arranged in vertical alinement, a yoke forming a connection between said valves,

a shaft journaled in one wall of the casing, a float on one end of the shaft, a weighted arm mounted upon the opposite end thereof for oscillatory movement, means for limiting the movements of said arm, and a connection between the valves and arm to simultaneously open the first two and close the last mentioned alve, and vice versa.

A steam trap comprising a casing having a water inlet and water outlet in the bottom thereof, and a steam inlet in the top, a valve controlling said outlet, a Valve for connecting. said steam inlet to a source of steam pressure, a. valve for placing said steam inlet in communication with the atmosphere, a shaft journaled in one Wall of the casing and a float on one end of the shaft, a weighted arm'mounted on the other end thereof for independent oscillatory movement, spaced pins projecting from said' arm, a lug rising from the shaft between two and close the last mentioned valves and vice versa.

3. A. steam-trap comprising a casing having a water inlet and water outlet in the bottom thereof, and a steam inlet in the top, a valve controllingsaid outlet, a valve for connecting said steam inlet to a source of steam pressure, a valve for placing said steam inlet in communication with theatmosphere. a shaft journaled in one wall of the casing, a float on one end of the shaft, a weighted arm loosely mounted on the opposite end of the shaft for independent os'cillatory movement, spaced pins projecting from said arm, av lug carried by the shaftfitted between said pins to cooperate therewith for initially imparting movement to said arm, a plate loosely mounted on said shaft, pins projecting from said plate disposed at opposite sides of the said arm and a connection between the valves and plate to simultaneously open the first two and close the last mentioned of said valves and vice versa.

4. A steam trap comprising a casing having'a water inlet and a water outlet in the bottom thereof, and a steam inlet in the top, a valve controlling said outlet, a valve for connecting said steam inlet to a source of steam pressure, a valve for placing said inlet in communication with the atmosphere, a shaft journaled in one wall of the casing, a float on one end of the shaft, a weighted arm mounted on the other end thereof for independent oscillatory movement, spaced pins projecting from said arm, :1 lug rising from the shaft between said pins and .adapted to cooperate with th'@ latter. to initially impart movement to said arm. means for limiting the movement of said arm in opposite directions, a. sector-like plate loosely mounted on said shaft, means car-Q ried by the plate to be engaged by saidarm, whereby the latter imparts a movement to said plate, and spaced parallel rods dependingfrom said plate and connected with said valves at opposite sides of said arm, where- 'by the first, two mentioned valves are simultaneously opened and the last mentioned valves closed upon movement of the arm inone direction, and vice.versa.

A steam trap comprising a casing'having a water inlet and a water outlet in'the bottom thereof, 'and a steaminlet in the-top, a valve controlling said outlet, a valv connecting said steam inlet to a source o-f-stcani pressure, a valve. for placing said steam. inlet in communication with the atmosphere, a lateral exterisionforming part of said casing, a shaft journaledjn said extension, a float on one end of the-shaft, a weighted arm on the other end thereof for independent oseillatory movement. pins projecting from said extension on the casing and arranged at opposite sides of the arm to limit the movements of the latter, a plate loosely mounted on said shaft, means carried by the plate and cooperating with said arm Wherehy the latter imparts movements to said plate, and a Connection between said plate 10 and said valves whereby the first two are GEORGE B. lVILLIAlliS.

Witnesses:

E. J. BREEN, WM. J. GIBSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. U. 

